Scheduling with time clock controls turns lights on and off, sets lighting levels for different times of day and changes the lighting profile for after-hours mode. More sophisticated systems also respond to signals sent from external control devices such as sensors or switches.
Paraffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.araffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.
Paraffin often is used as a substance for coating. Paraffin is used to make waxed paper, as well as to coat different kinds of cheese. Cheeses such as Edam and Gouda have a thick red coating that is made of paraffin wax to prevent mold growth and hardening of the cheese.he paraffin is melted using a heat source, such as a lighter, and the wax is allowed to drip on the envelope's cover. The wax is then typically stamped with a seal with an impression such as an image or a monogram.